titles_fltr

                              Titles:  FLTR
                              =============
 
    Contact:  N. West, Oxford.
 
    Revision History:-
    ================
 
    3.01  N. West     First version.
    3.02  N. West     Replace _CALL_USER by _OPTIONS
    4.02  N. West     Now in filter_fltr.dat.
 

 
Titles Files
------------
 
filter_fltr.dat
 
 
Verification
------------
 
 
Description
-----------
 
    This bank defines a single test of the Event Filter (FLT) system.  The
layout of the bank is identical to the NTPR. The test is true if the last
variable in the n-tuple is not equal to zero.  Note: the n-tuple is NOT stored.
For more information see the Chapter: The Programmable Event Loop of the SNOMAN
User's Manual.
 
 
Data Words
----------
 
      Data types: B(bit), I, F, D(double), H(hollerith 4 char)
 
      Fixed length Database Header.  See titles_dbhdr.html.
 
        KNTPR         Mnenonics relative to start of user data e.g.:-
                      icons(ldfltr + KFLTR_ENB) is the enable flag word.
                      Note KNTPR (as FLTR is identical to the NTPR).

   1  I _RESERVE_1    First reserved word.    DON'T TOUCH any of these reserved
   2  I _RESERVE_2    Second reserved word.   They are used internally.
   3  I _SPARE_3      Third reserved word.    No longer used.
   4  I _ENB          Enable flag.
   5  I _PRIME_ALLOC  Primary allocation for N-tuple (See HBOOK - HBOOKN).
   6  F _UNDEF_VALUE  Value used if variable undefined.
   7  I _NO_PARTIAL   Discard partial entry.
   8  I _SCAN_D_S     Scan D/S.
                       = 0 No scan, = 1 AND scan, = 2 OR scan
   9  I _OPTIONS      Set of 1-bit flags:-
                          Bit 0  Call NTP_PACK_USER.
                          Bit 1  Collapse n-tuple. (No effect on FLTR).
  10..H _TEXT         The rest of the bank is free-format text consisting
                         of:-
                            The name of the N-tuple
                            The definition of each variable
                            END_OF_NTUPLE